Recently bought Color and Light: A Guide for the Realist Painter and I cannot recommend this enough. It's an excellent guide to colour and light in general, and really points you towards subjects you ought to look into more, such as reflective light, caustics, different types of lighting sources and...

Yeah, once I have all the lines cleaned, I merge everything so there's only one layer of lines. Underneath the lineart layer, I have my layers for flats, one for each colour I use. That way, if I don't like the flat colour later on, I can just adjust the hue/saturation/brightness of that one colour....

University student currently looking for an accounting co-op placement. :c Too bad that has absolutely nothing to do with writing/art, which is what I'm interested in. Thinking of participating in the JET program when I graduate.